diff --git a/test/common/sea.js b/test/common/sea.js
index cc1890a5464012..d57c9e4238d867 100644
--- a/test/common/sea.js
+++ b/test/common/sea.js
@@ -2,6 +2,7 @@
 
 const common = require('../common');
 const fixtures = require('../common/fixtures');
+const tmpdir = require('../common/tmpdir');
 
 const { readFileSync } = require('fs');
 const {
@@ -43,6 +44,14 @@ function skipIfSingleExecutableIsNotSupported() {
       common.skip('On s390x, postject fails with `memory access out of bounds`.');
     }
   }
+
+  tmpdir.refresh();
+
+  // The SEA tests involve making a copy of the executable and writing some fixtures
+  // to the tmpdir. To be safe, ensure that at least 120MB disk space is available.
+  if (!tmpdir.hasEnoughSpace(120 * 1024 * 1024)) {
+    common.skip('Available disk space < 120MB');
+  }
 }
 
 function injectAndCodeSign(targetExecutable, resource) {
diff --git a/test/sequential/test-single-executable-application-disable-experimental-sea-warning.js b/test/sequential/test-single-executable-application-disable-experimental-sea-warning.js
index 0b4701b07e1c54..fdd0c23a26da3e 100644
--- a/test/sequential/test-single-executable-application-disable-experimental-sea-warning.js
+++ b/test/sequential/test-single-executable-application-disable-experimental-sea-warning.js
@@ -15,9 +15,8 @@ skipIfSingleExecutableIsNotSupported();
 const fixtures = require('../common/fixtures');
 const tmpdir = require('../common/tmpdir');
 const { copyFileSync, writeFileSync, existsSync } = require('fs');
-const { execFileSync } = require('child_process');
+const { spawnSyncAndExitWithoutError } = require('../common/child_process');
 const { join } = require('path');
-const { strictEqual } = require('assert');
 const assert = require('assert');
 
 const inputFile = fixtures.path('sea.js');
@@ -44,17 +43,27 @@ writeFileSync(configFile, `
 
 // Copy input to working directory
 copyFileSync(inputFile, tmpdir.resolve('sea.js'));
-execFileSync(process.execPath, ['--experimental-sea-config', 'sea-config.json'], {
-  cwd: tmpdir.path
-});
+spawnSyncAndExitWithoutError(
+  process.execPath,
+  ['--experimental-sea-config', 'sea-config.json'],
+  { cwd: tmpdir.path },
+  {});
 
 assert(existsSync(seaPrepBlob));
 
 copyFileSync(process.execPath, outputFile);
 injectAndCodeSign(outputFile, seaPrepBlob);
 
-const singleExecutableApplicationOutput = execFileSync(
+spawnSyncAndExitWithoutError(
   outputFile,
   [ '-a', '--b=c', 'd' ],
-  { env: { COMMON_DIRECTORY: join(__dirname, '..', 'common') } });
-strictEqual(singleExecutableApplicationOutput.toString(), 'Hello, world! 😊\n');
+  {
+    env: {
+      COMMON_DIRECTORY: join(__dirname, '..', 'common'),
+      NODE_DEBUG_NATIVE: 'SEA',
+      ...process.env,
+    }
+  },
+  {
+    stdout: 'Hello, world! 😊\n'
+  });
diff --git a/test/sequential/test-single-executable-application-empty.js b/test/sequential/test-single-executable-application-empty.js
index 13dc2e834b7caa..047685b0074aa9 100644
--- a/test/sequential/test-single-executable-application-empty.js
+++ b/test/sequential/test-single-executable-application-empty.js
@@ -14,7 +14,7 @@ skipIfSingleExecutableIsNotSupported();
 
 const tmpdir = require('../common/tmpdir');
 const { copyFileSync, writeFileSync, existsSync } = require('fs');
-const { execFileSync } = require('child_process');
+const { spawnSyncAndExitWithoutError } = require('../common/child_process');
 const assert = require('assert');
 
 const configFile = tmpdir.resolve('sea-config.json');
@@ -31,13 +31,22 @@ writeFileSync(configFile, `
 }
 `);
 
-execFileSync(process.execPath, ['--experimental-sea-config', 'sea-config.json'], {
-  cwd: tmpdir.path
-});
+spawnSyncAndExitWithoutError(
+  process.execPath,
+  ['--experimental-sea-config', 'sea-config.json'],
+  { cwd: tmpdir.path });
 
 assert(existsSync(seaPrepBlob));
 
 copyFileSync(process.execPath, outputFile);
 injectAndCodeSign(outputFile, seaPrepBlob);
 
-execFileSync(outputFile);
+spawnSyncAndExitWithoutError(
+  outputFile,
+  {
+    env: {
+      NODE_DEBUG_NATIVE: 'SEA',
+      ...process.env,
+    }
+  },
+  {});
diff --git a/test/sequential/test-single-executable-application-snapshot-and-code-cache.js b/test/sequential/test-single-executable-application-snapshot-and-code-cache.js
index 6d86d6a79d8d68..952003cf02c585 100644
--- a/test/sequential/test-single-executable-application-snapshot-and-code-cache.js
+++ b/test/sequential/test-single-executable-application-snapshot-and-code-cache.js
@@ -49,7 +49,11 @@ const outputFile = join(tmpdir.path, process.platform === 'win32' ? 'sea.exe' :
     process.execPath,
     ['--experimental-sea-config', 'sea-config.json'],
     {
-      cwd: tmpdir.path
+      cwd: tmpdir.path,
+      env: {
+        NODE_DEBUG_NATIVE: 'SEA',
+        ...process.env,
+      },
     },
     {
       stderr: /"useCodeCache" is redundant when "useSnapshot" is true/
@@ -61,8 +65,15 @@ const outputFile = join(tmpdir.path, process.platform === 'win32' ? 'sea.exe' :
   copyFileSync(process.execPath, outputFile);
   injectAndCodeSign(outputFile, seaPrepBlob);
 
-  spawnSyncAndExitWithoutError(outputFile, {
-    stdout: 'Hello from snapshot',
-    trim: true,
-  });
+  spawnSyncAndExitWithoutError(
+    outputFile,
+    {
+      env: {
+        NODE_DEBUG_NATIVE: 'SEA,MKSNAPSHOT',
+        ...process.env,
+      }
+    }, {
+      stdout: 'Hello from snapshot',
+      trim: true,
+    });
 }
diff --git a/test/sequential/test-single-executable-application-snapshot.js b/test/sequential/test-single-executable-application-snapshot.js
index 5c2d8c36fdd38f..402505a6122c74 100644
--- a/test/sequential/test-single-executable-application-snapshot.js
+++ b/test/sequential/test-single-executable-application-snapshot.js
@@ -73,7 +73,11 @@ const outputFile = tmpdir.resolve(process.platform === 'win32' ? 'sea.exe' : 'se
     process.execPath,
     ['--experimental-sea-config', 'sea-config.json'],
     {
-      cwd: tmpdir.path
+      cwd: tmpdir.path,
+      env: {
+        NODE_DEBUG_NATIVE: 'SEA',
+        ...process.env,
+      },
     },
     {
       stderr: /Single executable application is an experimental feature/
@@ -86,6 +90,12 @@ const outputFile = tmpdir.resolve(process.platform === 'win32' ? 'sea.exe' : 'se
 
   spawnSyncAndExitWithoutError(
     outputFile,
+    {
+      env: {
+        NODE_DEBUG_NATIVE: 'SEA,MKSNAPSHOT',
+        ...process.env,
+      }
+    },
     {
       trim: true,
       stdout: 'Hello from snapshot',
diff --git a/test/sequential/test-single-executable-application-use-code-cache.js b/test/sequential/test-single-executable-application-use-code-cache.js
index 96de5769b1fe6b..af5f2855ed6318 100644
--- a/test/sequential/test-single-executable-application-use-code-cache.js
+++ b/test/sequential/test-single-executable-application-use-code-cache.js
@@ -15,9 +15,8 @@ skipIfSingleExecutableIsNotSupported();
 const fixtures = require('../common/fixtures');
 const tmpdir = require('../common/tmpdir');
 const { copyFileSync, writeFileSync, existsSync } = require('fs');
-const { execFileSync } = require('child_process');
+const { spawnSyncAndExitWithoutError } = require('../common/child_process');
 const { join } = require('path');
-const { strictEqual } = require('assert');
 const assert = require('assert');
 
 const inputFile = fixtures.path('sea.js');
@@ -44,17 +43,32 @@ writeFileSync(configFile, `
 
 // Copy input to working directory
 copyFileSync(inputFile, tmpdir.resolve('sea.js'));
-execFileSync(process.execPath, ['--experimental-sea-config', 'sea-config.json'], {
-  cwd: tmpdir.path
-});
+spawnSyncAndExitWithoutError(
+  process.execPath,
+  ['--experimental-sea-config', 'sea-config.json'],
+  {
+    cwd: tmpdir.path,
+    env: {
+      NODE_DEBUG_NATIVE: 'SEA',
+      ...process.env,
+    },
+  });
 
 assert(existsSync(seaPrepBlob));
 
 copyFileSync(process.execPath, outputFile);
 injectAndCodeSign(outputFile, seaPrepBlob);
 
-const singleExecutableApplicationOutput = execFileSync(
+spawnSyncAndExitWithoutError(
   outputFile,
   [ '-a', '--b=c', 'd' ],
-  { env: { COMMON_DIRECTORY: join(__dirname, '..', 'common') } });
-strictEqual(singleExecutableApplicationOutput.toString(), 'Hello, world! 😊\n');
+  {
+    env: {
+      COMMON_DIRECTORY: join(__dirname, '..', 'common'),
+      NODE_DEBUG_NATIVE: 'SEA',
+      ...process.env,
+    }
+  },
+  {
+    stdout: 'Hello, world! 😊\n'
+  });
diff --git a/test/sequential/test-single-executable-application.js b/test/sequential/test-single-executable-application.js
index e930254cb0a7ae..6379dfd2ea4b6d 100644
--- a/test/sequential/test-single-executable-application.js
+++ b/test/sequential/test-single-executable-application.js
@@ -14,9 +14,8 @@ skipIfSingleExecutableIsNotSupported();
 const fixtures = require('../common/fixtures');
 const tmpdir = require('../common/tmpdir');
 const { copyFileSync, writeFileSync, existsSync } = require('fs');
-const { execFileSync } = require('child_process');
+const { spawnSyncAndExitWithoutError } = require('../common/child_process');
 const { join } = require('path');
-const { strictEqual } = require('assert');
 const assert = require('assert');
 
 const inputFile = fixtures.path('sea.js');
@@ -43,17 +42,27 @@ writeFileSync(configFile, `
 
 // Copy input to working directory
 copyFileSync(inputFile, tmpdir.resolve('sea.js'));
-execFileSync(process.execPath, ['--experimental-sea-config', 'sea-config.json'], {
-  cwd: tmpdir.path
-});
+spawnSyncAndExitWithoutError(
+  process.execPath,
+  ['--experimental-sea-config', 'sea-config.json'],
+  { cwd: tmpdir.path },
+  {});
 
 assert(existsSync(seaPrepBlob));
 
 copyFileSync(process.execPath, outputFile);
 injectAndCodeSign(outputFile, seaPrepBlob);
 
-const singleExecutableApplicationOutput = execFileSync(
+spawnSyncAndExitWithoutError(
   outputFile,
   [ '-a', '--b=c', 'd' ],
-  { env: { COMMON_DIRECTORY: join(__dirname, '..', 'common') } });
-strictEqual(singleExecutableApplicationOutput.toString(), 'Hello, world! 😊\n');
+  {
+    env: {
+      COMMON_DIRECTORY: join(__dirname, '..', 'common'),
+      NODE_DEBUG_NATIVE: 'SEA',
+      ...process.env,
+    }
+  },
+  {
+    stdout: 'Hello, world! 😊\n'
+  });